Music-leaf turner.



J.. 0. & V. M. PARKER.

MUSIC LEAF TURNER.

APPLICATION man JULY 24.1917.

1,253,092. Alaentef Jan. 8,1918.

1. o. &`v. M. PARKER. MUSIC LEAF TURNER. APPLICATION FILED JULY 24 19|7.

1,253,092. Patented Jan.'8,1918.

'2 SHEBTSAHEET 2.

Z6 l 2.19 ,M 4'/ f2 25 h I i ATTORNEY UNITED srA'rEs PATENT oEEioE JAMES O. PARKER AND VIVA M. PARKER,-0F LAKIN', KANSAS.

MUSIC-LEAF TURNER.

To all whom it may concern.' Y

Be it known thatwe, JAMES, @,FAREER and V1vAM. FAiumRLcitizens ofthe, United States, .residngfat Lakn,..ii11 the County/af Kearny and .j State y.of Kansas, have invented ne-wvand-,useful vImprovenients in Musicflgeaf Turners of which the `it0110ivns-.iS'a.Speelication.

Broadly statehthe invention coinprehends the'provision of an.` apparatus by means of which the leaves of musical compositions can be` turned at any time, Vand in eitherA direction by depressing a foot pedal, thusudoing away with the custom of turningthe leayes by hand, which usually results in interruptions in the playing ofthe instrument.

Other objects, as well as lthe nature and advantages Aof the invention will be better understoodwhen the following detail description is read in connection with :the accompanying drawings,v the inventionresiding in the construction, combination and arrangement ofparts as claimed. y

`In the drawings forming part of this specification like numerals of. reference indicate similar parts in the several views and wherein Figure 1 showsa front elevationof the apparatus positioned upon a piano, the latter being indicated byjdotted lines. i

Fig.A 2 is, aside elevation of the turning Vmechanism. f

Fig. 3,is,a horizontalsectional view taken on line, 3-3g of Figa 2.

a Eig. iis a transiter-se sectierialvev ,taken onlline44of Fig.2.v i i Fig.` 5 ,is a-'sectional viewf takenzon line 5--5 Of Flg.g2.

The apparatus forming the.A subj ect matter of our invention. essentially consists of;l a substantially U-shaped frame 10 upon w-hich is supported the main part of the mechanismy for turning the leavesof the musical cornposition. vOne of theparallellimbsl1y of thexframe iss-extended upwardlyvas-.fa-at 12 `so that the terminal 13; ofsaidlimb `willbe disposed in close `relation to the remaining parallel limb 11 of the frame v10. Fixed between theiextremitiesof the parallel limbs `ofthe framelO, is a vertically disposed shaft 14, while mounted uponlsaid shaft for rotation is a pluralityrofsleeves.15,1the latter being disposed in spaced superimposed relation. For each sleeveis-provided a disk-like platel whichiskeyed upon the vl'shaft A14im 'iuediatelybeneath -its respe tives1eeve. The -v Specification of Letterslaltent.

v@.'pplication led July 24, 1517. i Seria1-N o. 182,50*?.`

Patented Jams, 191s.

upper surfaceofthe disk-like plate 16, andthe confronting ,faceof'the sleeve laretformed with oppositely disposedannular recessesY 17 and 1'8"'respe'ctively, these recessesjunited'ly deiininga raceway forrollferfbearings 19, whereby the sleevev 15 can'be easily rotated `in they manner to` 'be hereinafter describedl Carried' by'eaclisleeve 15 is ya horizontally disposed ar1n2O from which is suspended 'a music sheet 21. For this purpose a plurality ofspring clips 22 are preferably employed for` sliding adjustment on the arm 20, the upper surface of which is lprovided with teeth 23 vwith which clips22. coperate with a view kofholding said clipsiixed relatively tothe arm in any adjusted positionv `Depending from one of the clips 22 is a yoke 24 in whichis journaled a guide pulley 25, and over which is trained a flexible element such as a chain or the like indicated at 26, one end ofthe latter being secured to the other clip 22, whilefthejopposite or lower end of the v chain has associated therewith a spring clasp 27v which supports the sheet music in the manner illustrated. The clips 22 can be moved toward and away from each other to vary the lengt-h of the flexible velement as the occasion may require. Inclosing 'the shaft 14 and its associated parts, is a semicylindrical casing 28 havingv end walls 29 which are secured inlanyisuitable manner tothe parallellimbsYofthe'frame 10. It might herevbe stated that' anyl number of. S1QeYes"15 and armsv20lmayv be associated witlithe 'shaift'l-l as desired,l while the,y casing 28 isy provided with a transverse slot'BO'for each ofthe arms 20, the latter projecting through the -slotsf() thepurpose of turning a sheet of` music.

.Journaled between the `parallellimbs, of the frame 10 is avertically disposed shaft 33 `from which projects aplurality of horizontallyA disposed arms 34. The arms 34 are provided to turnfone `of the sleeves l5 upon each lquarter of a revolution of the shaft 33, and with the turningof said sleeve' 15 the arm 20 carriedthereby, is swung one hundred and eighty degrees. from'one side ofthefcasing 28 tothe other. 4Cense quently the arms 34 project from the shaft 33 at differentpoints and in different directions, or in other Words the arms are disposed relatively so that each of the sleeves 15 is rotated in successive order from one end of the shaft 14ntol the other. served that each of the arms 2O is provided with a forked extremity, and the fingers 35 of saidextremity'are disposed in the path ofmovement of the arms 34, to be engaged by the latter for thepurpose of rotating the sleeves 15 andthe armsQO. The actuating extremities of the arms` 34 are offset as at 35 and support a roller 37 to prevent vbintling between the parts when .the shaft 33 is rotated.l Also supported on each arm 34 is a cross arm 38, the opposite extremities `of which areY offset as at 39 and support the rollers 40.Y Manifestly each arm 34 is provided With ay plurality'of roll.

ers disposed in triangular relation, so that when the arms 34 are rotated with the shaft 33 the rollers 37 and 40 engage the fingers 35 of the forked extremities of the arms 20 in successive order, to insure positive movement of the arms 20 to the limit of their adjustment. lhen it is stated that the rollers 37 and 40 engage the fingers 35 in successive order, it is to be understood that this fact depends upon the direction of rotation of the shaft 33. By reason of the triangular relation between the rollers 37 and 40, it is clear that the fingers 35 of the forked extremities of the arms 2O Will be continuously engaged by the rollers While the particular arm 20 is being swung from one side of the casing to the other.l The shaft `33 is formed with a plurality of flat surfaces or portions 41 with which ay plurality of leaf springs 42 coperate to maintain the shaft fixed in its adjusted ositionl subsequent to each rotation thereo Thesprings V4:2 are terminally secured to the' frame 10,

While the corresponding free extremities of the springs are adapted to engage the fiat surfaces or portions 41 of the shaft for the purpose just mentioned.

lVhile any suitable means maybe utilized for rotatin the shaft 33, We preferably make use o a pair of spaced vertically disposed rods 43, the lower extremity of which being connected with a foot pedal 44. The

y*pedals 44 are conveniently disposed at the opposite sides of the ordinary pedals of the instrument. The upper extremity of each 'of the rods 43 is secured to the relatively short branch 45 of a bell crank lever which is pivotally mounted at its apex upon a bracket 46, While pivotally associated with the extremity of the longer branch 47 of the bell crank lever is a horizontally disposed reciprocating rod 48. Each rod 48 has pivotally connected with the free extremity thereof a dog 49 which coaots with a sleeve 50 keyed upon the shaft 33 to rotate the latter. Also keyed upon the shaft 33 for rotation ltherewith are collars 51, the latter being disposed at opposite sides of 'the sleeve 50, While projecting fromv each pedals is depressed the shaft 33 is rotated l in one direction to turn the leaves ofmusic to the left,v and `when the other pedal is depressed the shaft 33 is rotated in a'reverse direction to turn thesheet of musicy to the right. Consequently thereciprocating rods 48 and their associated dogs operate independently .of each other. Whenone of the pedals is depressed the vertically disposed rod 43 connected therewith is depressed, thus imparting a pivotal movement to the bell crank lever and its associated rod 48 in. a direction to lcause tho dog 49 to have its active extremity moved into one of a plurality of grooves 53 provided in the sleeve 50. During a continued depression of the pedal and its associated parts, the sleeve 50 and shaft 33 are rotated in unison a quarter of a revolution, during which time one of the springs 54 is placed under tension. Simultaneously With the rotation of the shaft 33 one of the collars 51 is also rotated., and by reason of this fact the coil spring 55 encircling the L-shaped member 52 and connected therewith at one end with the dog 49 at the other end, is placed under tension. Subsequent to the turning of the sheet music, the pedal is released, at which time the coil spring 55 functionates to throw theV dog 49 out of engagement with the sleeve 50, and almost simultaneously with this action the lspring 54 functionates to return the pedal and its associated parts to normal position. When it is desired to turn the music in an opposite direction, the other pedal is operated and the operation of the mechanism is accordingly reversed.

lVhile it is believed that from the foregoing description the nature and advantages of the invention will be readily apparent, We desire to have it understood that what is herein shown and described is merely illustrative of the preferred embodiment of the invention, and is therefore not to be considered restrictive, as such changes in the construction and arrangement of parts may be resorted to when desired as fall Within the scope of what is claimed.

'What is claimed is 1'. A music leaf turner comprising a support, a shaft mounted thereon and having a fiat portion,'a plurality of sleeves mounted for independent rotation on said shaft, a

leaf turning arm carried by each sleeve, means for rotating said sleeves, and a leaf spring carried by each sleeve and coperating with said flattened portion of the shaft to hold said sleeve in adjusted position.

2. A music leaf turner comprising a support, a shaft mounted thereon, a plurality of sleeves mounted for independent rotation on said shaft, a leaf turning arm carried by each sleeve, means for rotating said sleeves, a pair of resilient clips mounted for relative u sliding adjustment upon said arm and cooperating therewith to maintain their adjusted position, a pulley j ournaled upon one of said clips, a flexible element secured at one end to the other of said clips and trained over said pulley, and a spring clasp carried by the opposite end of the flexible element.

3. A music leaf turner comprising a support, a shaft fixed thereon, a plurality of leaf turning arms projecting from the shaft and associated therewith for independent swinging movement, a second shaft rotatably mounted on said support, means carried by the said second shaft for individually swinging said arms at each quarter of a revolution of said shaft, means operable to partially rotate said shaft, and a leaf spring engaging said rotatable shaft and coperating therewith to bold said shaft immovable subsequent to each operation of the means for rotating the shaft.

et. A music leaf turner comprising a support, a shaft fixed thereon, a plurality of leaf turning arms associated with said shaft for independent swinging movement, a Second shaft rotatably mounted on said support, arms projecting radially from said shaft, a plurality of rollers carried by the outer extremity of said arms and disposed in staggered relation to coperate with the adjacent extremity of each of the leaf turning arms, to swing the latter in either direction depending upon the direction of rotation of said shaft, one of said leaf turning arms being actuated upon every quarter revolution of the second mentioned shaft, and means for rotating the latter in reverse directions.

5. A music leaf turner comprising a support, a shaft fixed thereon, a plurality of leaf turning arms associated with said shaft for independent swinging movement, one extremity of each arm being forked, a second shaft rotatably mounted upon the support, arms radiating from said second mentioned shaft, rollers carried by the outer extremity of each arm, said rollers being disposed in triangular relation and cooperating with the forked extremity of the adjacent leaf turning arm to swing the latter in either direction depending upon the direction of rotation of the second mentioned shaft, said leaf turning arm being actuated in successive order with each quarter revolution of the second mentioned shaft, and means for rotating said shafts in reverse directions.

In testimony whereof we aiiix our signatures. j

JAS. O. PARKER. VIVA M. PARKER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

